klosterman



' l 1,622 79o mmh` 29, 1927. M'KLOSTERMAN CASH REGISTER Filed- June '14. 192e z sheets-sheet 1 Patented Mar. 29, 1927.

1,622,790 UNITED 'STATES PATENT oEFlcE.

`JOSEPH J. XLOSTERMAN, F DAYTON, OHIO, ASS-IGNOR T0 THE NATIONAL IST'EB. COMPANY, OF DAYTON, OHIO, .A CORPORATION 0F MARYLAND.

CASH REGISTER.

Application filed June 14,

This invention relates to improvements in transfer mechanism of the type shown and described in Letters'Patent of the United States No. 497 ,860, issued to Thomas Carney,

. dated May 23, 1893.

The object of this invention is tov provide an improved transfer lnechanism which cannot be tripped prematurely, thereby causing transfers to be madeat the wrong time.

lVith this and incidental objects in view, the invention consists of certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form of embodiment of-which is hereinafter described with reference to the drawings which accompany and form part of this specification. .n

Of said drawings:

Fig. l is a cross-section through the machine showing a type of machine to which the invention is applied.

Fig. 2 is a detail view of the mechanism for rotating the main cam shaft.

Fig. 3 is a detail view of the transfer mechanism shown in its untripped position and with the totalizer element standing at nine.

Fig. 4 isa detail view of the transfer mechanism shown inthe sition which it assumes just before the totahzer element reaches zero.

F ig. 5 is a detail view of the transfer mechanism shown in the position it assumes when the totalizer element reaches zero.

Fig. 6 is a section through the totalizer showing the transfer carrying pawl in its moved position after the transfer mechanism has been tripped, the lower totalizer element being shown in the one position.

Y Fig. 7 is a top plan 'view of the-totalizer.

Fig. 8 is a detail view of the transfer mechanism showing the carrying pawl moved forward and the relation of the transfer tripp' and restoring pawlsl thereto when the toltizer element is standing at zero.

I n general.

In transfery 192e. serial No. 115,910.

supposed to stop' at nine Upon operation ofthe machine, with the transfer pawl thus tripped, transfers takel place Vwhen n'o transfer is'desired. ln the present ap lication the trip pawl is so timed that it Wi l not trip the Carrying" pawl4 until the totalizer elementv actually reaches its zero position. In the totalizer to which the invention is shown applied, it is necessary to provide a second pawl for restoring the transfer carrying p'awl to its normal position during the operation of the machine.

In detail.

'lhe'machne` is provided 4with a plurality of groups of amount keys 3() pivoted on a 'rod 3l, and each key carries an upright 32.A

cnsn nnements are actuated, by means of a cam 36 secured on a mainvcam shaft 37 which cooperates with an arm 38 for rocking a totalizer frame' 39. A totalizer of the type shown and f described in the application for letters patent of the United States by Edward J. Von Pein, Serial No. 87,348, filed February 10, 1926 has been shown because the type wheel 4l, which is driven by a gear 40 secured to the totalizer pinion 35, sets up additional mop nientum, thereby increasing the possibility of overthrowing the totalizer element. `However, it is to be understood that this improvement is not restricted to this totalizer inasmuch as-it can be used in connection with any totalizer where the transfer mechanism is of the ytype herein shown and described, such as for example as shown 'in the above mentioned Carney patent.l v The cam shaft 37 is given one complete rotation during each operation of themachine by means of the well known double faced rack 45 which is yadapted to mesh with a pinion 46 secured to the shaft 37. A key coupler 47 is provided for coupling the keys of the various denominations together when they are operated, and also for returning the keys to their home position. ,This key coupler. is provided with a roller 48 (Flg. 2), which engages a slot in a. rack 45 and thereby raises .and lowers the rack once during each operation of the machine.l All of the abovemechanism is old and -well known in the art and thereforel no further description thereof will be given.` l

Transfer mechanism.

Each totalizer element is provided' with a single toothed member 55 (Figs. 3, 4, 5

and 8) which is adapted to engage a nose 56 of a restoring pawl 57,' as thetotalizer element moves from nine to zero. As the totalizer element reaches its zero position, it engages the nose 58 of a trip pawl 59, thereby rocking itin a counter-clockwise direction. The restoring pawl 57 is provided with ashoulder which normally prevents a carrying pawl 61 from being rocked into its effective position. Each pawl 61 is provided with a spring 62 which tends to rock the awls to their effective positions. The carrying paivls are pivoted o n arms 63 which arms are operated by cams Get on the cam shaft 37. The cams 64 .are arranged spirally on the cam shaft so that the transfers are successively entered. When any transfer arm 63 is operated, after its cooperating carrying pawl 61 has been tripped, it will engage a ratchet 65 secured tothe totalizer element of the next higher order, thereby causing one to be added therein.

By referring to Fig. 3 it can be seen that the single `toothed member will` engage the nose 56 of the pawl 57 before it engages the nose 58 of the trip pawl 59. Fig. 4 shows the member 55 after it has rocked the restoring pawl 57 from engagement with the flange 60, and in a position where it is about to rock the trip pawl 59. The tri pawl 59 is provided with a. shoulder whic is slightly lower than the yshoulder on the restoring pawl and, therefore when the restoring pawl is rocked from engagement with the flange of the carrying pawl, the flange 60 will drop into engagement with the shoulder on the trip pawl 59. This is the position of the parts just before the totalizer element reaches its zero position. Fig. 5

'shows the carrying pawl 61 tripped, and the totalizer element in its zero position. As the carrying pawl moves forward` a spring 66 will cause the restoring pawl 57 to follow, as shown in Fig. 8, until the shoulder thereon is again beneath the flange 60 of the carrying pawl. When the carrying pawl is returned to its normal position, the flange 60 will again engage thev shoulder of the restoring pawl. The restoring pawl57 is required because the trip pawl 59 is so formed that the member 55. prevents the trip' pawl from following the carrying pawl, as shown in .Figs 6 and 8, far enough to cause it to be returned home.

The shoulder on the trip pawl is lower than the shoulder on the `restoring pawl for two reasons. First, when a 4transfer is eiected and the carrying pawlis returned toward its home position, if the'fshoulders zero the member 55 holds the trip pawl in its extreme forward position. lVhen the transfer is made, by moving the carrying pawl 6l, the restoring pawl moves forward and it then returns to home with the carrying pawl. After these two pawls return home, the trip pawl is still maintained in its extreme position. When thus held and an amount is added into the element the tooth of the member 55 passes from contact with the trip pawl and then the spring 67, causes the trip pawl to rock toward its normal position. .Under this circumstance if the v'shoulder of the trip pawl was not lower it could not' move below the flange 60 and therefore it would remain ineffective.

While the form of mechanism herein shown and described isadmirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention tothe one form of embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming within the scope of the claims which follow. What is claimed is:

l. In a transfer mechanism,the combination of a totalizer element, a carrying pawl,

a trip pawl, a restoring pawl for the carrying pawl, and means or tripping the trip pawl and the restoring pawl, said trip pawl being adapted to be vtripped as the totalizer element reaches its zero position and the restoring paivlbeing adapted to be tripped prior to the trip pawl.

2. In a transfer mechanism, the combination of a totalizer element, a carrying pawl, means for causing the carrying pawl to be tripped as the totalizer element reaches zero, a restoringl pawl for said carrying pawl adapted to normally engage said carrying ,pawl and to b eftripped prior to the tripping .of said carrying pawl by said means, and' means for operating said carrying pawlfor effecting a carry, said restoring pawl being adapted to inove with said carrying pawl for the purpose of returning the carrying pawl into engagement with said trip pawl.

3. In atransfer mechanism, the combinationof a totalizer element, a carrying pawl, a .trip pawl, a restoring pawl,` means for tripping the trip pawl and the restoring pawl as the element moves from nine to zero, and means for operating said carrying pawl l v:for eifectmg a carry, vsaid restoring pawl r1,692,790 i B bein adated tomove with said carryingA carrying pawl after the carryingipawl has paw for t e purpose ofnreturnin the carrybeen tripped, and a. projection on said restorlng puwl into engageient wit sald trip ing paw] formed so as to rmit lthe restorpawl. ing pawl to be tripped an to permit the re- 5 4. In a trnsfer mechanism, the combinastoring pawl to move with the carrying pawl tion of a. totalizer element, a carrying pawl, l for restorin the carryin pawl into engagea tri pawl, a restoring pawl, means for ment with t e trip pawE f tripplng the trip pawl and the restoring In testimony whereof I aiix my signature. aw a Ero'ection on said trip pawl for 1F0 olding t rip pawl disengagedfrom the JOSEPH J. KLOSTERMAN. 

